交換機(jī)學(xué)習(xí)筆記word版-wenkub.com
2024-08-28 17:23 本頁面
【正文】 根據(jù)需要，可以定義VLAN虛網(wǎng)間的訪問策略，可通過定義訪問列表來實(shí)現(xiàn)。 配置三層交換 配置MLSP協(xié)議，使RP與SE之間可以交換信息。 交換機(jī)在默認(rèn)情況下為Server模式。一個(gè)VTP Server上的配置將會(huì)傳遞給網(wǎng)絡(luò)中的所有交換機(jī)，VTP通過減少手工配置而支持較大規(guī)模的網(wǎng)絡(luò)。 動(dòng)態(tài)VLAN：通過設(shè)置VMPS（VLAN Membership Policy Server），包含了一個(gè)MAC地址與VLAN號的映射表，當(dāng)數(shù)據(jù)幀到達(dá)交換機(jī)后，交換機(jī)會(huì)查詢VMPS獲得相應(yīng)MAC地址的VLAN ID。由于在局域網(wǎng)上，不同VLAN之間的通信數(shù)據(jù)量是很大的，這樣，如果路由器要對每一個(gè)數(shù)據(jù)包都路由一次，隨著網(wǎng)絡(luò)上數(shù)據(jù)量的不斷增大，路由器將不堪重負(fù)，路由器將成為整個(gè)網(wǎng)絡(luò)的瓶頸。VLAN就是不考慮用戶的物理位置而根據(jù)功能、應(yīng)用等因素將用戶邏輯上劃分為一個(gè)個(gè)功能相對獨(dú)立的工作組，每個(gè)用戶主機(jī)都連接在一個(gè)支持VLAN的交換機(jī)端口上并屬于一個(gè)VLAN。解決的方法是把交換機(jī)端口設(shè)置為Portfast方式：CatOS(4000/5000/6000): set spantree portfast mod_num/port_num enable。以下信息將顯示在遠(yuǎn)端的Catalyst 5000. Wed Jun 19 1996, 15:51:59 Port 1/2 has bee trunk.Cat5001 (enable) sho trunk Port Mode Status 1/1 on trunking 1/2 auto nottrunking 2/12 off nottrunking 5/1 auto nottrunking 5/2 auto nottrunking 5/3 auto nottrunking 5/4 auto nottrunking 5/5 auto nottrunking 5/6 auto nottrunking 5/7 auto nottrunking 5/8 auto nottrunking 5/9 auto nottrunking 5/10 auto nottrunking 5/11 auto nottrunking 5/12 auto nottrunking Port Vlans allowed 1/1 110001/2 110002/12 110005/1 110005/2 110005/3 110005/4 110005/5 110005/6 110005/7 110005/8 110005/9 110005/10 110005/11 110005/12 11000Port Vlans active 1/1 11/2 12/12 15/1 15/2 15/3 15/4 15/5 15/6 15/7 15/8 15/9 15/10 15/11 15/12 1 注意: DISL在Cisco IOS軟件中不支持. 分配VLAN到端口Cat5001 (enable) set vlan 2 3/220VLAN 2 modified.VLAN 1 modified.VLAN Mod/Ports 2 1/13/220 Cat5001 (enable) set vlan 20 5/16VLAN 20 modified.VLAN 1 modified.VLAN Mod/Ports 20 1/15/16 Configure additional information for VLAN 20. On the other Catalyst 5000 : Cat5002 (enable) set vlan 2 4/12,5/612VLAN 2 modified.VLAN 1 modified.VLAN Mod/Ports 2 1/24/13,4/5235/612 Configure additional information for VLAN 20. Cat5002 (enable) set vlan 20 5/15VLAN 20 modified.VLAN 1 modified.VLAN Mod/Ports 20 1/25/15 Configure VLAN 20 on a VTP server. 顯示端口配置Cat5001 (enable) show port Port Name Status Vlan Level Duplex Speed Type 1/1 connected 1 normal half 100 100BaseTX1/2 connected trunk normal half 100 100BaseTX2/1 connecting 1 normal half 100 FDDI2/2 connected 1 normal half 100 FDDI4/1 inactive 2 normal half 10 10BaseT4/2 inactive 2 normal half 10 10BaseT4/3 inactive 2 normal half 10 10BaseT4/4 notconnect 1 normal half 10 10BaseT4/5 inactive 2 normal half 10 10BaseT4/6 此時(shí), VLAN 2 和VLAN 20 2和VLAN 20的端口是inactive狀態(tài). 設(shè)置VLAN 20如果在網(wǎng)絡(luò)里有VTP server和VTP clent,請?jiān)赩TP server上設(shè)置VLAN 20 Cat5001 (enable) set vlan 20VLAN 20 modified 這將激活在所有管理域cisco內(nèi)的VLAN 20 Cat5001 (enable) sho vlan 20VLAN Name Status Mod/Ports 20 VLAN0020 active 1/15/16 VLAN Type SAID MTU Parent RingNo BridgeNo Stp Trans1 Trans2 20 enet 100020 1500 0 0 配置Routerconf tinterface FastEthernet0/ you need to create a subinterface by vlan. encapsulation isl 20 20 is the vlan number.ip address interface FastEthernet0/encapsulation isl 2 ip address interface FastEthernet0/encapsulation isl 1 ip address Router eigrp 666network network network end writ mem DHCP SERVER遷移到6509交換機(jī)的MSFC一位客戶想把DHCP SERVER遷移到6509交換機(jī)的MSFC上,要求還挺復(fù)雜: 、Wins服務(wù)器等 2的地址租用有效期限為1天,其它為3天 最終配置如下： ip dhcp excludedaddress //不用于動(dòng)態(tài)地址分配的地址 ip dhcp excludedaddress ip dhcp excludedaddress ! ip dhcp
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